Build Firmware and Program Controller
=====================================


Download and Install
--------------------
### 1. Install Tools

1. **Toolchain** On Windows install [Atmel AVR Toolchain][atmelgcc] for AVR GCC compiler and [Cygwin][cygwin](or [MinGW][mingw]) for shell terminal. On Mac you can use [CrossPack][crosspack] or your favorite package manager. On Linux you can install AVR GCC with your favorite package manager.

2. **Programmer** Install [dfu-programmer][dfu-prog]. GUI tool [Atmel FLIP][flip] also can be used on Windows.

3. **Driver** On Windows when you start DFU bootloader on the chip first time you will see **Found New Hardware Wizard** to install driver. If you install device driver properly you will find chip name like **ATmega32U4** under **LibUSB-Win32 Devices** tree on **Device Manager**. If not you shall need to update its driver on **Device Manager**. You will find the driver in `FLIP` install directory like: `C:\Program Files (x86)\Atmel\Flip 3.4.5\usb\`. In case of `dfu-programmer` install driver distributed with it.

If you use PJRC Teensy you don't need step 2 and 3 above, just get [Teensy loader][teensy-loader].


### 2. Download source
You can find firmware source at github:

- <https://github.com/tmk/tmk_keyboard>

If you are familiar with [`git`][git] tools you are recommended to use it but you can also download zip archive from:

- <https://github.com/tmk/tmk_keyboard/archive/master.zip>


Build firmware
--------------
### 1. Open terminal
Open terminal window to get access to commands. Use Cygwin(or MingGW) shell terminal in Windows or `Terminal.app` on Mac OSX.

### 2. Change directory
Move to project directory in the firmware source.

    cd tmk_keyboard/{'keyboard' or 'converter'}/<project>

### 3. Make
Build firmware using GNU `make` command. You'll see `<project>_<variant>.hex` file in that directory unless something unexpected occurs in build process.


    make -f Makefile.<variant> clean
    make -f Makefile.<variant>




Program Controller
------------------
Now you have **hex** file to program on current directory. This **hex** is only needed to program your controller, other files are used for development and you may leave and forget them.

### 1. Start bootloader
How to program controller depends on controller chip and its board design. To program AVR USB chips you'll need to start it up in bootloader mode. Most of boards with the chip have a push button to let bootloader come up. Consult with your controller board manual.

### 2. Program with DFU bootloader
Stock AVR USB chips have DFU bootloader by factory default. `FLIP` is a DFU programmer on Windows offered by Atmel. `FLIP` has two version of tool, GUI app and command line program. If you want GUI see tutorial below. Open source alternative `dfu-programmer` also supports AVR chips, it is command line tool and runs on Linux, Mac OSX and even Windows.


To program with command of `FLIP` run this. Note that you need to set PATH variable properly.

    $ make -f Makefile.<variant> flip

With `dfu-programmer` run this.

    $ make -f Makefile.<variant> dfu

Or you can execute the command directly as the following.

    $ dfu-programmer <controller> erase --force
    $ dfu-programmer <controller> flash <your_firmware.hex>
    $ dfu-programmer <controller> reset

`<controller>` part will be `atmega32u4` or `atmega32u2` in most cases. See manual of the command for the detail. On Linux and Mac OSX you will need proper permission to program a controller and you can use `sudo` command for this purpose probably. On Linux you also can configure `udev` rules to set permission.


#### FLIP GUI tutorial
1. On menu bar click **Device** -> **Select**, then choose your chip name. (In most cases **ATmega32U2** or **ATmega32U4**)
2. On menu bar click **Settings** -> **Communication** -> **USB**, then click **Open** button on **USB Port Connection** dialog. At this point you'll have to plug into USB and start bootloader.

3. On menu bar click **File** -> **Load HEX File**, then select your firmware hex file on File Selector dialog.
4. On **Operations Flow** panel click **Run** button to load the firmware binary to the chip. Note that you should keep **Erase**, **Blank Check**, **Program** and **Verify** check boxes selected.
5. Re-plug USB cord or click **Start Application** button to restart your controller.
Done.

See also these instructions if needed.

- <http://code.google.com/p/micropendous/wiki/LoadingFirmwareWithFLIP>
- <http://www.atmel.com/Images/doc7769.pdf>


##### Troubleshoot
* **FLIP: AtLibUsbDfu.dll not found**
Remove current driver and re-install one FLIP provides from DeviceManager of WIndows. See <http://imgur.com/a/bnwzy>


### 3. Program with Other programmer
If you are using PJRC Teensy consult with instruction of [Teensy Loader][teensy-loader]. Or run this target with `make` after you install command line version of it.

    $ make -f Makefile.<variant> teensy

You may want to use other programmer like [`avrdude`][avrdude]. In that case you can still use make target `program` for build with configuring `PROGRAM_CMD` in Makefile. See below.

    $ make -f Makefile.<variant> program


[atmelgcc]:     http://www.atmel.com/tools/ATMELAVRTOOLCHAINFORWINDOWS.aspx
[cygwin]:       https://www.cygwin.com/
[mingw]:        http://www.mingw.org/
[crosspack]:    http://www.obdev.at/products/crosspack/index.html
[flip]:         http://www.atmel.com/tools/FLIP.aspx
[dfu-prog]:     http://dfu-programmer.sourceforge.net/
[teensy-loader]:http://www.pjrc.com/teensy/loader.html
[avrdude]:      http://savannah.nongnu.org/projects/avrdude/
[git]:          https://git-scm.com/



Makefile Options
----------------
### 1. MCU and Frequency.

    MCU = atmega32u4       # Teensy 2.0
    #MCU = at90usb1286      # Teensy++ 2.0
    F_CPU = 16000000

Set your MCU and its clock in Hz.

    # Boot Section Size in *bytes*
    #   Teensy halfKay   512
    #   Teensy++ halfKay 2048
    #   Atmel DFU loader 4096
    #   LUFA bootloader  4096
    OPT_DEFS += -DBOOTLOADER_SIZE=4096

If you are using PJRC Teensy use `512` for `BOOTLOADER_SIZE`, otherwise use `4096` unless you are sure.

### 2. Features
Optional. Note that ***comment out*** with `#` to disable them.

    BOOTMAGIC_ENABLE = yes      # Virtual DIP switch configuration(+1000)
    MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
    EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
    CONSOLE_ENABLE = yes        # Console for debug(+400)
    COMMAND_ENABLE = yes        # Commands for debug and configuration
    SLEEP_LED_ENABLE = yes      # Breathing sleep LED during USB suspend
    #NKRO_ENABLE = yes          # USB Nkey Rollover - not yet supported in LUFA
    #BACKLIGHT_ENABLE = yes     # Enable keyboard backlight functionality

### 3. Programmer
Optional. Set proper command for your controller, bootloader and programmer. This command can be used with `make program`.

    # avrdude with AVRISPmkII
    PROGRAM_CMD = avrdude -p $(MCU) -c avrispmkII -P USB -U flash:w:$(TARGET).hex

    # avrdude with USBaspLoader
    PROGRAM_CMD = avrdude -p $(MCU) -c usbasp -U flash:w:$(TARGET).hex

    # avrdude with arduino
    PROGRAM_CMD = avrdude -p $(MCU) -c arduino -P COM1 -b 57600 -U flash:w:$(TARGET).hex



Config.h Options
----------------
### 1. Magic command key combination

    #define IS_COMMAND() (keyboard_report->mods == (MOD_BIT(KB_LSHIFT) | MOD_BIT(KB_RSHIFT)))

### 2. Mechanical Locking Support for CapsLock

    /* Mechanical locking CapsLock support. Use KC_LCAP instead of KC_CAPS in keymap */
    #define CAPSLOCK_LOCKING_ENABLE
    /* Locking CapsLock re-synchronize hack */
    #define CAPSLOCK_LOCKING_RESYNC_ENABLE

### 3. Disable Debug and Print

    /* disable debug print */
    #define NO_DEBUG

    /* disable print */
    #define NO_PRINT

### 4. Disable Action Features

    #define NO_ACTION_LAYER
    #define NO_ACTION_TAPPING
    #define NO_ACTION_ONESHOT
    #define NO_ACTION_MACRO
    #define NO_ACTION_FUNCTION

***TBD***